Syn Shenron  

Syn is the ultimate evil power in the universe. Syn was born with the combination of all the evil energy given out by the corroded Dragon Balls making him the strongest of the dragons. Syn eventually absorbs all 7 Dragon Balls to become the awesome Omega Shenron giving him the powers of every Shadow Dragon. The Dragon Balls were used to restore life, but Syn has only one goal...the destruction of all life in the universe! 

Dragon of the 1 star ball.